Year Number 1996 94.99 1997 118.96 1998 111.63 1999 118.22 2000 158.13 2001 134.94 2002 196.94 2003 178.93 2004 253.94 2005 316.17 2006 350.6 2007 427 2008 503.25 2009 650.21 2010 694.54 2011 745.11 2012 782.33 2013 945.53 2014 888.54 2015 926.12 2016 1045.73 2017 1205.27 2018 1247.91 2019 1321.39 2020 1485.23